Coffee-making apparatus



(. ANSTON AND G. P. PETROPULUS.

COFFEE MAKlNG APPARATUS. APPucATloN FILED DEc.1o.1921.

Patented Mar. 7, 1922.

iff-f A TTORNEYS GEORG-E ANSTON AND GEORGE LP. PETROPULOS, OF CHICAGO, ILLINOIS.

COFFEE-MAKING APPARATUS.

Application filed December 1G, 192i.

To all w/wm it may concern:

Be it known that we, GEORGE Ns'roN and Gfnonsn P. PE'rnorULos, both subjects of the King of Greece, and residents of Chicago, in the county of Cook and State of illinois, have invented a new and useful `improvement in Cofee-Making Apparatus, of which the following is a full, clear, and exact description.

Our invention relates to improvements in coffee making apparatus, and it consists in the combinations, constructions, and arrangements herein described and claimed.

Vith the coffee making devices of ordi* nary construction, when the level of the liquid has fallen below the coffee containing sack and it is desired to make the coffee stronger, it is necessary to first remove the cover of the device and to then drain off a portion of the liquid and to pour the same over the Coffe grounds.

The principal object of our invention is to provide a coffee making apparatus in which a fluid is adapted to be passed over the coffee grounds and at the same time to entrain the coffee liquid that is below the coffee grounds to above the grounds, whereby the liquid will again be passed through the grounds.

A further Object of our invention is to provide a device of the type described which has manually controlled means for causing the coffee liquid to be passed through the coffee grounds, and which also has means for percolating the coffee.

VA further object of our invention is to provide a device of the type described which is simple in construction, and which is not likely to easily get out of order.

Other objects and advantages will appear in the following specification, and the novel features of the invention will vbe particularly pointed out in the appended claims. 4 @ur invention is illustrated in the accompanying drawings, forming part of this application, in which Figure fl a diagrammatic view of the device,

Figure 2 is a diagrammatic view of a modified form of the device, and

Figure 3 is a diagrammatic view of another modified form of the device.

In carrying out our invention, we provide a water boiler l which is connected by water pipes 2 to two coffee making devices 3 (see Figure l). Since both of the coffee making Specification of Letters Patent.

the container 5.

coffee stronger.

Patented, Mar. 7, 1922. Serial No. 521,375.l

devices are identical with respect to each other, the description of one will suffice. The Vcoffee device 3 is provided with a casing '4, a liquid container 5, and a coffee containing sack 6. The casing 4 is supported by legs 7 and has a removable cover 8 disposed thereon. Gas burners or the like are disposed under the casing l and under the boiler 1.

The pipe 2 is bent downwardly inside of the boiler l so that the lower end thereof is submerged in the water. The other end of the pipe 2 is provided with a branch 9, whereby water can be emitted to the liquid container' 5 or to the space between the container 5 and the casing 4. l/Vith this construction, the water in the casing 4l when heated, will keep the liquid in the container 5 hot for a great length of time.

A steam pipe l0 extends from the boiler l to the casing 4 and is bent upwardly so as to project through the bottom of the container 5. The pipe l0 is provided with an opening 1l at this point and is then bent u wardly so as to lie adjacent to the wall of The pipe terminates in a downwardly extending spout 12which is disposed above the level of the coffee grounds in the sack 6.

From the foregoing 4description of the various parts of the device, the operation thereof may be readily understood. .Assume that the level of the liquid in the container 5 has fallen below the bottom of the sack 6 and that it is desired to make the The valves la in the pipe l() are Opened. This permits live steam to pass through the pipe l0 and out of the spout 12. The check valve l5 prevents any of the liquid in the container from backing up into the pipe 10. As the steam rushes through the pipe l0 it entraine the liquid from the container 5 and carries it up over the coffee grounds.

If desired a'constant percolation of the coffee may be had by lighting the burner 16 which will heat the water in the lower part of the container 5 and will cause it to pass above the grounds.

In Figure 2 of the drawing we show a slightly modied form of the device to that shown in Figurey l. In this form the pipe 10 is connected to a hand pump 20. A pipe 2l is conneqted to the pipe 10 and is also connected to a source of compressed air (not shown). It is obvious that the liquid in the Cir `by opening the valve 5 can lbe poured over the coffee actuating the pump A2O or AAnother modified iorrn ofthe device is shown in Figure 3. This form of the device is identical to that torna is shown in Figure i,

container' p grounds by either eircept that in this Vform, the pipe l() terminates `at the bottom of the container 5, and a pipe 30 having a perforated base 3l takes the place of the portion of the pipe 10 lnhich projects upwardly in the container' ln the operation or' this :form ci the device, the steamriows from the pipe i() up through the pipe 30 and entrains the fluid, which rlovvs through the perforated base, along` therewith. The iiuid is ejectedirom the the vpipe 30 and ialls upon the coee grounds. It is also apparent that by lighting the burner 16, the liquid Will be percolated by means ot the pipe 30. A safety valve is connected to the pipe i0 to permit the ready escape or' the steam it the latter exceeds a predetermined pressure.

It will be obvious from the foregoing,` that we Vhave provided a device which is simple in construction and which is effective for the purpose intended.

vWe claim:

1. A device of the type described coniprising a fluid source of supply, a liquid container, a colee containing saclr carried by said container, a fluid conveyor connected with said source and projecting through the bottom of said container and terminating above the coiiee saclr, said conveyor having openings therein adjacent to the bottom of the container.

2. A device of the type described comprising a liquid container, a `steam boiler,

a cottee saclr carried by said container, a

ot the device whichV 'pipe connected to said steam pipe connected to said boiler and projecting upwardly through the bot-tom ot said container and terminating above said sack, said pipe having an opening therein adjacent to the bottom oi said container, and a Water pipe connecting said boiler. with said container.

.3. A. device of the type described comprising a liquid container, a source of air supply, a coffee saclr carried by said container, and an air pipe connecting said source ot air supply with said container and projecting upwardly in said container and terminatingabove said sack, said pipe having an opening` adjacent to the bot-tom ot said container. 1

4c. A device of the type described comprising a liquid container, a steam boiler, a coilee sack carried by said container, a `steam boiler and opening into the lbottom of said container, a` second pipe disposed Vin said container and havinga perforated base, the upper end of said second named pipe projecting above said sack, and a water pipe connecting said boiler with said container.

5. A. device 'of the type described com prising,` a :liquid container, a steam'boiler, a coffee sac-lr carried by said container, a steam pipe connected to said boiler and opening into the bottom of said container, a second pipe disposed in said container and having a perforated base, the upper end or' said second `named pipe projecting above said sack, and a Water pipe connecting said boiler'ivith said container, said pipe havingl a branch `in communication with the exterior of said container GEORGE ANSTON. v GEORGE l. PETROPULOS. 

